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Jaeger-LeCoultre
Jaeger-LeCoultre Master Ultra Thin Moon

Jaeger-LeCoultre Master Ultra Thin Moon

Best price now

$20,995.00at HammatimeObserved at 6:16 AM

18% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Our take on the Jaeger-LeCoultre Master Ultra Thin Moon

The Master Ultra Thin Moon is Jaeger-LeCoultre's dress watch with a moon-phase and date at 6 o'clock, driven by the in-house automatic Calibre 925. This steel version measures 39 mm across and 9.3 mm thick, so it slips under a cuff. The best new price is $20,995 at Hammatime as of November 4, 2026, with 3 stores listing it new. That sits near the top of what this reference has sold for recently, so it is not a bargain moment.

Best forDress watch buyers who want a thin caseCollectors of in-house moon-phase movementsOne-watch wearers who need steel, not goldGift buyers marking a milestone
Pros
  • In-house Calibre 925 automatic with a true moon-phase
  • 39 mm by 9.3 mm case wears slim under a shirt cuff
  • Steel case makes it more wearable and less precious than the gold versions
  • Moon-phase and date kept clean and symmetrical at 6 o'clock
  • Strong brand reputation for finishing at this price
Cons
  • $20,995 is a lot for a steel dress watch
  • No screw-down crown, so water resistance is modest
  • Moon-phase and date setting takes more care than a quartz watch
  • Service costs are high and intervals are long
  • Resale is softer than for steel sports models

Jaeger-LeCoultre Master Ultra Thin Moon prices at every store

  • PrestigeTime.comNew

    In stock

    $25,550.00Observed at 6:16 AM
    Visit store
  • HammatimeNew

    Availability unknown

    $20,995.00Observed at 6:16 AM
    Visit store
  • Mio Watches & JewelryNew

    Availability unknown

    $25,603.00Observed at 6:16 AM
    Visit store

Also available at

  • BorsheimsCheck price at Borsheims
  • Burdeen's JewelryCheck price at Burdeen's Jewelry
  • C&CCheck price at C&C
  • CH JewelersCheck price at CH Jewelers
  • CH Premier JewelersCheck price at CH Premier Jewelers
  • Chrono24.comCheck price at Chrono24.com
  • CJ CharlesCheck price at CJ Charles
  • Greenleaf & CrosbyCheck price at Greenleaf & Crosby
  • Jaeger-LeCoultreCheck price at Jaeger-LeCoultre
  • Little SwitzerlandCheck price at Little Switzerland
  • Luxury Of WatchesCheck price at Luxury Of Watches
  • Zadok JewelersCheck price at Zadok Jewelers

Jaeger-LeCoultre Master Ultra Thin Moon price history

Lowest price we've seen: $13,000.00 on Nov 4 at Borsheims. Tracked across 15 stores since Nov 4.

What reviewers say

Owners and reviewers treat the Master Ultra Thin Moon as one of the best-value in-house moon-phase dress watches. Praise centers on the thin case, the dial balance and the movement finishing. Criticism is mostly about price and the care a mechanical moon-phase needs.

Pros
  • Slim 9.3 mm profile sits flat under a cuff
  • Clean dial with the moon-phase and date well placed
  • Calibre 925 finishing visible through the caseback
  • Comfortable 39 mm size for most wrists
Cons
  • Steel at this price invites comparison with gold watches
  • Modest water resistance for daily wear
  • Moon-phase adjustment is fiddly when the watch has stopped
  • Servicing is expensive

Specifications

Size
39 mm x 9.3 mm
Metal
Steel
Movement
Calibre 925
Style
Wrist
Display
Analog
Department
Unisex
Water Resistant
Yes
Watch Movement
Mechanical
Mechanical Movement
Automatic
Case Shape
Round Case
Case Size
39mm case

Questions and answers

Is the Master Ultra Thin Moon worth $20,995 in steel?
You are paying for an in-house automatic moon-phase movement and JLC finishing in a thin case. If you want a moon-phase dress watch and prefer steel, it is a fair buy. If you want value, a gold-plated or entry-level moon-phase from another brand costs far less.
How does it compare with the gold version?
The steel version uses the same Calibre 925 and the same 39 mm case, so the watch wears the same. Steel is cheaper, lighter and less flashy. Gold costs more and holds value better on resale.
How accurate is the moon-phase?
The Calibre 925 moon-phase is geared to stay accurate for about 122 years before needing a one-day correction. That is far more precise than the 29.5-day cycle most owners notice.
Can I swim with it?
No. It is a dress watch with modest water resistance and no screw-down crown. Take it off for swimming, showers and anything where it could be submerged.
What is in the box?
Expect the watch on a leather strap, a JLC presentation box, and paperwork including the warranty card. Confirm strap type and warranty terms with the seller before you buy.
When is it cheapest?
New prices for this reference have stayed close to $21,000 across the 3 stores listing it as of November 4, 2026. Used examples and gray-market sellers are where discounts appear, so watch those listings rather than waiting for a new-price drop.
Where is the Jaeger-LeCoultre Master Ultra Thin Moon cheapest?
At Hammatime, for $20,995.00, 18% under what the other stores charge, as of our latest check.
Where can I buy the Jaeger-LeCoultre Master Ultra Thin Moon?
15 stores we checked sell it, including Hammatime, PrestigeTime.com, Mio Watches & Jewelry, Borsheims, Burdeen's Jewelry.